Muigizaji Leonardo DiCaprio ameagizwa kufika mahakamani kutoa ushahidi wake katika kesi iliyofunguliwa na dalali wa zamani wa soko la hisa Andrew Greene akidai kuwa sinema ya The Wolf of Wall Street inamdhalilisha na kumuonesha kama mhalifu aliyebobea katika dawa za kulevya.
Andrew Greene anadai kuwa mtu aliyebeba jina la Nicky "Rugrat" Koskoff alikuwa ni yeye.
Greene alikuwa anafanyakazi kazi katika soko la hisa la Stratton Oakmont, lililoanzishwa na Jordan Belfort nafasi iliyochezwa na DiCaprio.
The Wolf of Wall Street, iliyoongozwa na Martin Scorsese, ilimuonesha DiCaprio katika uhalisia wa Belfort kwa kuzingatia kitabu kinachomhusu yeye.
Greene anawashtakiwa maprojuza wa sinema hiyo wakiwemo Paramount Pictures, Red Granite Pictures, DiCaprio's Appian Way Productions na Sikelia Productions.
The character of Nicky "Rugrat" Koskoff wore a toupee and was the subject of the movie line "swear to God, I want to choke him to death". He was played by PJ Byrne.
Mr Green said the film changed his nickname from "Wigwam" to "Rugrat," adding it spread untruths about him and that damages to his reputation were worth $15m (£10.5m).
The claims were rejected, but a judge allowed the claimant to assert instead that the filmmakers maliciously libelled him.
Thursday's hearing, chaired by magistrate judge Steven Locke, overruled arguments that DiCaprio's testimony only serves as harassment and coercion.
The defendants had argued Scorsese and screenwriter Terence Winter had already testified, and that the claimants had not stated why they needed DiCaprio to testify as he did not write the screenplay or play the character.
Mr Greene has said he worked at Stratton Oakmont between 1993 and 1996 as the head of the firm's corporate finance department and a member of the board of directors.
He has also said he did not consent to his image, likeness and characterisation being used in The Wolf of Wall Street.
The film was a major box office hit and was nominated for five Oscars, including best picture and best actor for Leonardo DiCaprio in 2014.